It even gets more interesting with soil based probiotics, soil contains hundreds of billions microbes you cannot reproduce in a laboratory and hormones that attract hormones (yes soil has hormones) which in turn attracts just the right amount of microbes that attach themselves to the roots of plants or sometimes enter the plant itself through the roots (which the roots themselves secrete a hormone to attract these certain soil based hormones and microbes) to protect the plant and some of these microbes even create a protective barrier between the plant and the soil called bio-film to protect it from other bacteria and fungus that would otherwise harm it!
In the same sense that’s what’s missing from the innate symbiosis verses the modernized version* of the human gut flora microbiota (gut bugs) and is not the same stuff (probiotics; that have serious immunological properties and other implications) you get at your local health food store? Not surprisingly our ancestors actually ate the deeper ground soil dirt besides what we today consider food[1][2]?
*footnote: …separation from nature i.e. contact with the deeper dirt/soil or excessive-fortification: sterilization of the environment…
Not sure if I just tried to delete my own post by accident but copied what I just wrote just in case…lol
Footnotes:
) with me all the time.